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EP 4 496 569 A1

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(43) Date of publication: 29.01.2025 Bulletin 2025/05 (21) Application number: 23775814.9 (22) Date of filing: 20.03.2023

(51) International Patent Classification (IPC):  A61K 31/395(2006.01) A61K 31/025(2006.01) A61K 31/33(2006.01) A61K 31/18(2006.01) A61K 31/03(2006.01) (52) Cooperative Patent Classification (CPC): C07D 231/14; C07D 309/08; C07D 307/24; C07D 207/16; C07D 307/68; C07D 211/60; C07D 207/22; C07D 213/81; C07D 309/06; C07D 493/08; C07D 233/90; C07D 317/46; C07D 261/18; C07D 207/28; C07D 317/48; C07D 237/24; C07D 233/64; C07D 309/10; C07D 275/03; A61P 35/00; C07C 311/46 (86) International application number: PCT/US2023/064686 (87) International publication number: WO 2023/183763 (28.09.2023 Gazette 2023/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 21.03.2022 US 202263321818 P (71) Applicant: ChemoCentryx, Inc. San Carlos, CA 94070 (US)

(72) Inventors: CHU, Hiufung San Carlos, California 94070 (US) FAN, Pingchen Hayward, California 94545 (US) LI, Yandong San Diego, California 92131 (US) MALATHONG, Viengkham Mountain View, California 94043 (US) POWERS, Jay San Carlos, California 94070 (US) TANAKA, Hiroko Mountain View, California 94041 (US) ZENG, Yibin Foster City, California 94404 (US) ZHANG, Penglie Foster City, California 94404 (US) (74) Representative: J A Kemp LLP  80 Turnmill Street London EC1M 5QU London EC1M 5QU (GB)